R. Terry Chesser (2004) MOLECULAR SYSTEMATICS OF NEW WORLD SUBOSCINE BIRDS. Molecular Phylogenetics And Evolution, v. 32, n. 1, p. 11-24. doi.org/10.1016/j.ympev.2003.11.015
Ricklefs, Robert E. (2002) SPLENDID ISOLATION: HISTORICAL ECOLOGY OF THE SOUTH AMERICAN PASSERINE FAUNA. Journal of Avian Biology, v. 33, n. 3, p. 207-211. www.jstor.org/stable/3677586